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No software pianos that I know of except for PianoTeq make use of high resolution MIDI, so at the moment that won't make a difference.

The triple sensor thing may make a difference depending on your level of skill and what type of music you play. Definitely a point on Casio's side. On the minus side, be aware that the Casio is capable of half-pedal but the pedal it comes with does not support it and a generic pedal will not work. You have to get the stand and SP33 pedal attachment if you want partial pedal, which I think you should.

However, the above is a small consideration when compared with the preferences your fingers have after playing both. Either piano would work well as a MIDI controller, but you want one that feels good/natural to you.

I was thinking that although I prefer the casio because of its more solid feel. I should still get the yamaha because I have the fc3 pedal already, and the lighter keys would probably be better for my health.

And when the time comes for a real piano I would find one with a lightweight key action for the same reason

Thinking along the lines that The pianist tends to adjust to the instrument being played etc.

And in my case a lighter action would be appropriate due to my unique situation.

On the other hand the casio px130 wasn't that particularly heavy, it was comfortable but after some time may get tiring. However, the problem lies in the part for the stand and pedal .. Extra costs. Casio resale value in my country is next to nothing. Build quality may not be as high as yamaha..

I am concerned that the px150 action is even heavier than the px130 And I have no access to a px150 locally.

Furthurmore,With the yamaha I can choose to sell after some years and upgrade to a roland perhaps, or not upgrade at all if I grow to like the ghs action.

Eitherway I'm upgrading from a unweighted keyboard with 32note polyphony. I doubt I would be unhappy with my decision.

Lots of factors to take into consideration and my head is spinning to make this decision.

Thanks a lot for your help with previous posts btw. I posted my opinions on the Sony v6 for your benefit. It's an amazing headphones and I am still puzzled that i prefer it to headphones that cost five times as much(beats)

Don't get me wrong there isn't anything wrong with the beats. Just too bass heavy for my tastes.

I agree with MTA on the 130- it is a high quality action; but does have a tendency do get a little tiring but they had the best intentions when designing it.If you are not using the internal sounds nor speakers you might prefer the px150's action. I had the P95 for years and intend on using the px130 to control my soon to be PC Audio/recording setup.My main piano right now is my SP280 and I find it less fatiguing than the pX130 and a little more pleasant than the p95

I seriously doubt there are any korgs available locally. The Action of the px130 and 150 are the same u say Mike Martin? Well that's good news. I can go try out the px130 once more before I make a decision but i'm really leaning on the Yamaha because of it's lighter action.

It would make sense that a lighter action would be less fatiguing.

I've heard that roland actions are between the Yamaha GHS and casio actions in term of keyweight.. If I can get my hands on one I may upgrade from the Yamaha eventually to a roland.

My take is that if you like the GHS action over the Casio actions, especially if you have hand problems, and will use a software piano, then the P35 is just fine. The only niggle for me would be if I ever wanted to use just the inbuilt sounds and speakers.

Having said that, I do think the Casio actions are better in the sense of closer feel to an acoustic, if that is what you want, but they may also be harsher, as with just about all hammer type actions than GHS. On another thread someone described GHS as like playing through oil or treacle, and yes maybe, it is softer and that is why it's better for people with hand problems. Exceptions might be some of the Kawai's with the shallow feel to the key, my last experience with that is on a CA63.

Difficult to make a direct recommendation for you mta88 with 'muscle fatigue' problems. You need to play them for yourself.